| 2019 | 2020 | 2021 | 2022 | 2023 | Change 23/22 | % Change 23/22 | Avg. Gr. (%) | Mean | SD | Min | Max | CV | Share in 2023 (%) | |
| Tax | 49.52 | 47.97 | 57.43 | 58.90 | 56.26 | -2.64 | -4.48 | 3.24 | 54.02 | 4.93 | 47.97 | 58.90 | 0.09 | 29.96 |
| Industry margin | 31.63 | 28.09 | 43.93 | 49.01 | 44.60 | -4.41 | -9.00 | 8.97 | 39.45 | 9.06 | 28.09 | 49.01 | 0.23 | 23.75 |
| Crude CIF price | 63.12 | 45.79 | 69.44 | 104.16 | 86.93 | -17.23 | -16.54 | 8.33 | 73.89 | 22.43 | 45.79 | 104.16 | 0.30 | 46.29 |
| Composite barrel | 144.27 | 121.85 | 170.80 | 212.07 | 187.79 | -24.28 | -11.45 | 6.81 | 167.36 | 35.47 | 121.85 | 212.07 | 0.21 | 100.00 |